Track IR.

[whoarmongar]

Track Ir is rather expensive and may be hard to justify to your Wife/Partner etc.

There is now a much less expensive option with whoarmongars patented alternative system which is now available to you on a FREE 30 day trial.

Simply attach an opticalmouse to a stick and shove the stick down your back so that the optic side of the mouse is touching the back of your head, then adjust your settings on the mouse to suit.
Voila your view now tracks when your head moves ! This is a simple cheap effective answer to your head tracking dreams.